description klein tools gfci receptacle tester with lcd the rt250 is an electrical receptacle tester that tests the wiring conditions at an electrical outlet and inspects gfci devices. the lcd displays the voltage, identifies the wiring fault, and the time required to trip a gfci device. it is designated for use with north american 3-wire 120v electrical outlets. gfci electrical circuit tester inspects gfci devices. easy to read lcd display shows voltage, faults, gfci trip time. identifies common wiring faults on north american 120v outlets. bright green and red leds illuminate for visual indicators. cat ii 135v safety rating. durable 6.6-foot (2 m) drop protection. for use on 3-wire, north american 120v electrical outlets only. for more than 160 years, klein tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. klein isn't just the name of our company, it's also our family name. and since we're an american company that's family-owned and family-run, you know you can count on us to be here tomorrow. klein tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... since 1857. california proposition 65 warning. view warning label features gfci receptacle tester features a large backlit lcd readout of voltage and clear indication of wiring conditions lcd readout shows the time required to trip a gfci device detect and identify common wiring faults patent pending detection of open neutral open ground wiring fault auto-hold is convenient for hard-to-reach outlets bright green and red leds illuminate for visual indicators cat ii 135v safety rating durable 6.6-foot (2 m) drop protection for use on 3-wire, north american 120v electrical outlets only specifications acme tools brand name klein tools acme tools part number rt250 application detects and identifies common wiring problems in gfci receptacles assembled weight (lbs) 0.26 battery quantity required 2 battery size aaa california proposition 65 warning required yes color / finish orange country of origin china dc polarity indicator no dc voltage 135v ac depth (in) 1 digital / analog digital digital display yes globaltradeitemnumber (gtin) 00092644693212 internal supplier part # rt250 internet product code (ipc) ac6b488cbf3 length (in) 4 manufacturer warranty please refer to attached warranty document. material abs and electrical components package depth 7.5 package height 2 package weight 0.34 tester type receptacle upc 092644693212 weight (lbs) 0.3 weight (oz) 4.8 width (in) 2